围护结构传热系数快速测试仪的辨识算法研究

Research on Identification Methods of Quick-Testing Instrument of Heat Transfer Coefficient of Envelop

围护结构传热系数快速测试仪的研制可以为节能建筑的验收与评价提供真实有效的测试数据,以达到快速准确地检测评定建筑物性能的目的。这一仪器的研制将为建筑节能工作的开展提供强有力的技术支撑工具。利用实测的数据,用遗传算法和最小二乘法辨识分别得到了墙体的传热系数估计值。可知遗传算法是一种利用墙体的动态实验数据获得墙体传热系数的有效方法,并且具有较高精度。

In order to provide true and effective testing data for checking and accepting energy-saving buildings, the quick-testing instrument of heat transfer coefficient of envelop is developed, which will test and evaluate performance of the buildings. According to testing data, the estimates of heat transfer coefficient of envelope are separately extracted from the testing datum by genetic algorithm and least square method. Comparing the consequence, the results show that genetic algorithm is available to this issue and has higher precision.